Degree Type

Thesis

Date of Award

1-1-2002

Degree Name

Master of Science

Department

Chemistry

Major

Analytical Chemistry

Abstract

A new technique for in situ imaging and screening heterogeneous catalysts by using multiplexed capillary electrophoresis with absorption detection was developed. By bundling the inlets of a large number of capillaries, an imaging probe can be created that can be used to sample products formed directly from a catalytic surface with high spatial resolution. In this work, we used surfaces made of platinum, iron or gold wires as model catalytic surfaces for imaging. Various shapes were recorded including squares and triangles. Model catalytic surfaces consisting of both iron and platinum wires in the shape of a cross were also imaged successfully. Each of the two wires produced a different electrochemical product that was separated by capillary electrophoresis. Based on the collected data we were able to distinguish the products from each wire in the reconstructed image.

DOI

https://doi.org/10.31274/rtd-20200723-2

Copyright Owner

Michael Christodoulou

Language

en

OCLC Number

51007874

File Format

application/pdf

File Size

46 pages

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